[css-ui] Remove reference to the Marquee spec, which has been retired.

Author: frivoal

css-ui/Overview.html

@@ -2258,13 +2258,10 @@ <h4 class="no-num no-toc">ellipsis interaction with scrolling interfaces</h4>
    interface to swipe-scroll, etc.), there are additional implementation
    details that provide a better user experience:
 
-  <p> When an element is scrolled (e.g. by the user, DOM manipulation, or <a
-   href="http://www.w3.org/TR/2008/CR-css3-marquee-20081205/#overflow-style">‘<code
-   class=property>overflow-style</code>’</a> <a href="#ref-CSS3MARQUEE"
-   rel=biblioentry>[CSS3MARQUEE]<!--{{CSS3MARQUEE}}--></a>), more of the
-   element's content is shown. The value of text-overflow should not affect
-   whether more of the element's content is shown or not. If a non-clip
-   text-overflow is set, then as more content is scrolled into view,
+  <p> When an element is scrolled (e.g. by the user, DOM manipulation), more
+   of the element's content is shown. The value of text-overflow should not
+   affect whether more of the element's content is shown or not. If a
+   non-clip text-overflow is set, then as more content is scrolled into view,
    implementations should show whatever additional content fits, only
    truncating content which would otherwise be clipped (or is necessary to
    make room for the ellipsis/string), until the element is scrolled far
@@ -3110,16 +3107,6 @@ <h3 class="no-num no-toc" id=informative-references>Informative References</h3>
    </dd>
    <!---->
 
-   <dt id=ref-CSS3MARQUEE>[CSS3MARQUEE]
-
-   <dd>Bert Bos. <a
-    href="http://www.w3.org/TR/2014/NOTE-css3-marquee-20141014/"><cite>CSS
-    Marquee Module Level 3.</cite></a> 14 October 2014. W3C Working Group
-    Note. URL: <a
-    href="http://www.w3.org/TR/2014/NOTE-css3-marquee-20141014/">http://www.w3.org/TR/2014/NOTE-css3-marquee-20141014/</a>
-   </dd>
-   <!---->
-
    <dt id=ref-CSSUI>[CSSUI]
 
    <dd>Tantek Çelik. <a

css-ui/Overview.src.html

@@ -1414,8 +1414,7 @@ <h4 class="no-num no-toc">ellipsis interaction with scrolling interfaces</h4>
 </p>
 
 <p>
-When an element is scrolled (e.g. by the user, DOM manipulation,
-or <a href="http://www.w3.org/TR/2008/CR-css3-marquee-20081205/#overflow-style">'overflow-style'</a> [[CSS3MARQUEE]]),
+When an element is scrolled (e.g. by the user, DOM manipulation),
 more of the element's content is shown.
 The value of text-overflow should not affect whether more of
 the element's content is shown or not. If a non-clip text-overflow